The most affordable starting bases in British Virgin Islands are: BVI, Tortola, Ritter House Marina (from $987/week), BVI, Hodge's Creek Marina (from $1,190/week), BVI, Tortola, Nanny Cay Marina (from $1,673/week). Cheaper bases are often inland or further from the most popular cruising grounds, so check the typical week-one itinerary before deciding.